A girl is shot and Cosgrove teams with Det Jalen Shaw to track down her killer; Benson and Stabler assist and realise it's more than a typical homicide; McCoy and Price seek justice against an international crime ring.
The Center send Philip and Elizabeth on a mission unlike any previous operation; they struggle to contain the potential risks of Paige and Matthew Beeman's budding relationship.
Paige begins to see her mother in a new light, and realises she may have inherited some of her mother's skills. Oleg nears his breaking point with Stan.
Philip must take stock of his life with Martha and make a difficult choice, from which there is no return.
Paige's snooping forces Philip and Elizabeth to make a choice that changes the balance of their lives forever; Stan and Aderholt's recruitment of Sofia suddenly bears fruit.